i2c: i801: Fix the i2c-mux gpiod_lookup_table not being properly terminated

gpiod_add_lookup_table() expects the gpiod_lookup_table->table passed to
it to be terminated with a zero-ed out entry.

So we need to allocate one more entry then we will use.

Fixes: d308dfb ("i2c: mux/i801: Switch to use descriptor passing")
Signed-off-by: Hans de Goede <[email protected]>
Reviewed-by: Mika Westerberg <[email protected]>
Acked-by: Jean Delvare <[email protected]>
Reviewed-by: Linus Walleij <[email protected]>
Signed-off-by: Wolfram Sang <[email protected]>

Author: jwrdegoede

drivers/i2c/busses/i2c-i801.c

@@ -1449,7 +1449,7 @@ static int i801_add_mux(struct i801_priv *priv)
 
 	/* Register GPIO descriptor lookup table */
 	lookup = devm_kzalloc(dev,
-			      struct_size(lookup, table, mux_config->n_gpios),
+			      struct_size(lookup, table, mux_config->n_gpios + 1),
 			      GFP_KERNEL);
 	if (!lookup)
 		return -ENOMEM;